A review of iceberg and bergy bit hydrodynamic interaction with offshore structures

Download
  1. Get@NRC: A review of iceberg and bergy bit hydrodynamic interaction with offshore structures (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.coldregions.2016.12.005
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleCold Regions Science and Technology
ISSN0165-232X
Volume135
Pages3450
Subjecticeberg; bergy bit; hydrodynamic interaction; offshore structure; proximity effect; impact load
AbstractThis paper establishes the current state of the art in the subject of iceberg and bergy bit motion during interaction and impact with offshore structures. Our particular interest in the present case is the influence of hydrodynamic interaction on change in velocity as small ice masses approach a larger structure in open water. Iceberg impacts are a design driver for structures located in offshore regions subject to drifting glacial ice. It is found that although many studies note that near-field effects influence the velocity and trajectory of drifting bergs prior to impact, the understanding of near-field hydrodynamic effects such as negative wave drift force, fluid cushioning, shadowing, reduction in impact velocity, and hydrodynamic damping, is incomplete. These effects are more obvious for small ice masses and bergy bits and although they have been identified qualitatively, there is very little quantitative information available. The inability to properly account for these phenomena generally leads to overestimation in impact velocity and consequently input impact energy. Better understanding of hydrodynamic interaction between small icebergs and offshore structures in very close proximity could improve load predictions by improving the estimation of input energy.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedYes
NPARC number23002584
Export citationExport as RIS
Report a correctionReport a correction
Record identifier492cbf2a-6a1f-4a74-a88a-4fa981b2ea23
Record created2017-12-04
Record modified2017-12-04
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)
Date modified: